Shaft-packing.



PATENTED MAR. 24, 1908. G. WESTINGHOUSE.

SHAFT PACKING.

APPLICATION FILED MAR.5.1906.

R O T N E V N shaft 2 which GEORGE WESTINGHOUSE, OF PITTSBURG, P

ENNSYLVANIA, ASSIGNOR TO THE WESTING- HOUSE MAOHINE COMPANY, A CORPORATION OF PENNSYLVANIA.

* SHAFT-PACKING.

Specification of Letters Patent. Original application filed February 12, 1904, Serial No. 193,354. Divided and this Patented March 24, 1908.

application filed March 5,1906.

Serial No. 304,388.

To all whom it may concern:

Be it known that I, GEORGE WESTING- resident of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented new and useful ShaftPacking, of which the following is a specification, this application being a division of an ap lication filed by me on February 12, 1904, gerial No. 193,354.

This invention relates to packing for rotatable shafts and as an object has the production of a simple and efficient packing es ecially adaptable for use lII'COIIIIGCtlOILWIth steamor other elastic fluid turbines, and in the drawing I have shown it as applied to the shaft of a steam turbine.

7 The rotor 1 of the turbine ismounted on projects through openings in casing 3 and is journaled in suitable bearlngs 4.

tially L-sha .ring 5 and t The invention is shbwn as applied to a horizontal turbine, although, of'course, it is licable to a turbine having a vertical ft, or a shaft disposed in any other pos tlon. 7

Packings are shown on the inside and outside of the casing on each side of the turbine, between the shaft and casing, and, since they are the same in all essential particulars, a description of one is considered sufficient for .thiewpurpose of this a plicationa ounted on and reely movable lengthwise of the shaft is a packing ring 5 substaned in cross section. Betweene shaft, which at that point is grooved as shown at 6, packing material 7 of any suitable kind is intergosed, whereby a fluid-tight joint between the ring and the shaft is maintained. Means are for urging the ring lengthwise of t e shaft, consistingpreferably of springs 8 housed in sockets in a collar 9, whic is rigidly secured to theshaft, The outer face of the acking ring is faced off in a plane of revolutlon and concentric water grooves 10 are turned therein. Located within an undercut annular slot formed in the casing concentric with the shaft is a wearing plate 11 which may be formed of babbitt'or any other suitable material. The springs 8 are designed to hold the wearing face of packing ring 5 in packing contact with wearing plate 11.

rovided 'ing, a pl urality of springs yieldin In accordance with the provisions of the I patent statutes, I have described the prin- HOUSE, a citizen of the United States, and a ciple of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof; but I desire to have it understood that the apparatus shown is only illustrative and that the invention can be carried out by other means.

What I' claim as new and desire to secure by Letters Patent of the United States, is:

1. In combination with a turbine and its shaft, a packing comprising an L-shaped ring surrounding said shaft, astationary ring surrounding said shaft and mounted on the casing of sald turbine, means for yieldingly forcing said L-shaped ring into contact with said stationary ring and a located between said s ring.

2. In combination with a turbine, a shaft,

a packing comprising a rotatable ring surrounding said shaft, a stationary ring surrounding said shaft and secured to said casing, a s rin for forcing said rotatable ring lon itu inal y of said shaft into contact with sai stationary ring and a plurality of packing rings mounted on said shaft and located between said shaft and said rotatable rin 3. In combination witha turbine and its shaft, 'a packin comprising a floating ring surroundlng sai shaft, a stationary ring surrounding said shaft and secured to the casing of said turbine, means for yieldin 1y forcing said floating ring into contact with said stationary ring and a plurality of packing rings between said floating ring and said shaft.

4. In combination with a turbine and itsc shaft, a packin comprising a floating ring surrounding saic shaft, a stationary rin surroundim said shaft and secured to said caslurality of split rings 70 aft and. said L-shaped ly forcing n said floating ring into contact wit said sta-. tionaryring and a plurality of rotatable packing rings-mounted on sand shaft and located between it and said floating ring.

In testimony whereof, Ihave hereunto subscribed my name this 1st day of March 1906.

GEO. WESTINGHOUSE.

Witnesses:

' WM. H. CAPEL,

H. O. TENER. 

